SnipShot http://snipshot.com/ [Edit photos from your hard-drive, your Webshots account, or your Flickr account in one place, and then save them back to any of those locations.]
Screencast-O-Matic http://www.screencast-o-matic.com/ [This is a free and easy way to create a video recording of your screen (aka screencast) and upload it for free hosting all from your browser with no install!]
Below you will find a variety of Open Source tools to assist in using media to educate.
Using Web 2.0 Tools in Elementary Classrooms
Graphic, audio & video files for educators http://www.internet4classrooms.com/graphics.htm
Open Source Audio [audio files]
Audio Editing
Still Media Editing Tools
Open Source Images [image files]
Video Editing Tools
Open Source Video [video files]
Finding Videos
Conversion Tools
More on Video